Extra space character after breaking change emoju (⚠️)

### Environment

NA

### Reproduction

https://github.com/unjs/changelogen/blob/a3029d08d6b07d28e715d637e06ad9d713e77d83/src/markdown.ts#L144

### Describe the bug

- Current: `(commit.isBreaking ? "⚠️  " : "") +`
- Expected: `(commit.isBreaking ? "⚠️ " : "") +`

### Additional context

_No response_

### Logs

```sh

```